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Analog Devices Inc. AD9204BCPZ-20
- Part No.:
- AD9204BCPZ-20
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9204BCPZ-20.pdf
- Description:
- IC ADC 10BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:210
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Product details
Overview
AD9204BCPZ-20 from Analog Devices is a dual-channel, 10-bit, 20 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with 700 MHz analog input bandwidth, 61.3 dBFS SNR at 9.7 MHz, and DNL of ±0.11 LSB. It serves as a high-fidelity digitizer in I/Q demodulation, ultrasound front-ends, and battery-powered test equipment.
For engineers reviewing the AD9204BCPZ-20 datasheet, AD9204BCPZ-20 pinout, AD9204BCPZ-20 application, or AD9204BCPZ-20 equivalent, key selection considerations include its 20 MSPS sample rate, dual-channel interleaving capability, 1.8 V to 3.3 V programmable digital output voltage, on-chip reference, and support for offset binary/gray/twos complement data formats.
Technical Context
The AD9204BCPZ-20 implements a multistage differential pipeline ADC architecture with output error correction logic, guaranteeing 10-bit accuracy and no missing codes across −40°C to +85°C. Its differential clock inputs accept CMOS/LVDS/LVPECL signals, and an optional duty cycle stabilizer maintains performance under wide clock duty cycle variation.
Each channel features independent CMOS digital outputs with programmable data alignment, a dedicated data clock output (DCOA/DCOB), and out-of-range indicators (ORA/ORB). The device supports serial port interface (SPI) configuration for clock division (1-to-8), test pattern generation, power-down control, and voltage reference mode selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - Ensures 1024 distinct digital codes per conversion cycle, suitable for medium-precision signal acquisition. |
| Sample Rate | 20 MSPS - Fixed maximum conversion rate for this variant; enables real-time digitization of baseband and low-IF signals up to ~9.7 MHz Nyquist bandwidth. |
| SNR @ 9.7 MHz | 61.3 dBFS - Defines usable dynamic range for narrowband communications signals; supports >9.8 ENOB at that frequency. |
| Analog Input Bandwidth | 700 MHz - Allows direct sampling of RF/IF signals without external anti-alias filtering up to UHF frequencies. |
| Differential Nonlinearity | ±0.11 LSB (typ) - Guarantees monotonicity and minimal code-width variation, critical for measurement linearity. |
| Power Consumption | 30 mW per channel at 20 MSPS - Enables ultra-low-power operation in portable instrumentation and energy-constrained systems. |
| Supply Voltages | AVDD = 1.8 V (analog), DRVDD = 1.8 V to 3.3 V (digital) - Supports mixed-voltage system interfacing while minimizing analog noise coupling. |
Pinout & Package
The AD9204BCPZ-20 is housed in a 64-lead RoHS-compliant LFCSP package with exposed paddle soldered to AGND for thermal and noise integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (exposed paddle) | Primary ground reference | Mandatory connection to PCB AGND plane for thermal dissipation, noise reduction, and mechanical reliability. |
| CLK+, CLK− | Differential clock input | Accepts CMOS/LVDS/LVPECL clocks; internal bias sets common-mode at 0.9 V; enables jitter-insensitive sampling. |
| VIN+A, VIN−A / VIN+B, VIN−B | Differential analog inputs | High-impedance, 700 MHz bandwidth inputs; require matched 100 Ω termination for optimal SFDR performance. |
| D0A–D9A, D0B–D9B | CMOS digital outputs | 10-bit parallel outputs per channel; MSB-aligned; support 1.8 V or 3.3 V logic levels via DRVDD selection. |
| DCOA, DCOB | Data clock outputs | Source-synchronous clocks aligned to respective channel data; essential for timing-critical FPGA/ASIC capture. |
| ORA, ORB | Out-of-range indicators | Active-high flags signaling input overrange condition on corresponding channel; used for automatic gain control or clipping detection. |
| SCLK/DFS, CSB, SDIO/DCS | SPI interface pins | Enable full register configuration: data format, clock divider, power modes, DCS enable, and test pattern selection. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage reference | 1.0 V nominal output with ±12 mV tolerance; eliminates need for external precision reference in cost-sensitive designs. |
| Programmable clock divider | Integer 1-to-8 division allows flexible system clock reuse and reduces EMI from high-frequency clock distribution. |
| Built-in test pattern generation | Supports deterministic, pseudorandom, and user-defined patterns via SPI-enables production testing without external signal sources. |
| Energy-saving power modes | Power-down mode draws only 2.2 mW; standby mode consumes 37 mW-critical for intermittent-sampling applications like handheld scopes. |
| Scalable analog input range | 1 V p-p to 2 V p-p differential span selectable via REF SELECT; simplifies interface to diverse signal chain gain stages. |
Applications
| Ultrasound Imaging Front-End | I/Q Demodulation System |
|---|---|
|
Use Scenario: Digitizing echo return signals from piezoelectric transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC capturing in-phase and quadrature baseband signals with matched gain/phase response. Use Value: 61.3 dBFS SNR and ±0.11 LSB DNL preserve tissue contrast resolution; 20 MSPS supports 10 MHz receive bandwidth with oversampling margin. |
Use Scenario: Converting downconverted RF signals into digital I and Q streams for software-defined radio receivers. IC Role / Device Role / Timing Role: Synchronized dual ADC providing time-aligned I/Q samples with sub-ns skew (<0.1 ns) between channels. Use Value: 700 MHz analog bandwidth enables direct sampling of low-IF signals; on-chip DCS ensures stable timing under variable clock duty cycles. |
| Handheld Oscilloscope | Battery-Powered Spectrum Analyzer |
|
Use Scenario: Real-time waveform capture in compact, USB-powered oscilloscopes with ≤20 MHz bandwidth requirement. IC Role / Device Role / Timing Role: Low-power, single-supply ADC delivering 10-bit resolution at 20 MSPS with integrated reference and sample-and-hold. Use Value: 30 mW per channel enables >4-hour battery life; 1.8 V AVDD minimizes DC-DC conversion losses and thermal load. |
Use Scenario: Digitizing swept IF outputs in portable spectrum analyzers targeting cellular/Wi-Fi band monitoring. IC Role / Device Role / Timing Role: High-SFDR ADC (75 dBc typical) rejecting adjacent-channel interference during narrow-resolution-band scans. Use Value: 75 dBc SFDR at 9.7 MHz ensures accurate amplitude measurement of weak signals near strong interferers; low power extends field deployment time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 10-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9203ARUZ | Single-channel, 10-bit, 40 MSPS; no on-chip reference; requires external 2.5 V reference; 28-lead TSSOP. | Lacks dual-channel synchronization and integrated reference; suited for space-constrained single-path digitizers. | Select when board area is critical and only one channel is needed; verify external reference stability meets SNR requirements. |
| ADS5272IPFP | Dual-channel, 10-bit, 40 MSPS; 3.3 V analog supply; higher power (120 mW total); LVDS outputs only. | Higher supply voltage increases noise sensitivity; LVDS interface demands careful routing and termination. | Choose for legacy 3.3 V systems requiring LVDS compatibility; avoid in battery-powered or low-noise analog domains. |
Compared with AD9204BCPZ-20, AD9203ARUZ offers smaller footprint but sacrifices channel matching and reference integration, while ADS5272IPFP delivers higher speed at the cost of power and analog supply complexity-making AD9204BCPZ-20 optimal for portable, dual-channel, low-voltage precision digitization.
Availability
AD9204BCPZ-20 is available at Aetrix Electronics and suitable for ultrasound imaging front-ends, handheld oscilloscopes, and I/Q demodulation systems requiring stable component supply, industrial temperature operation (−40°C to +85°C), and RoHS-compliant packaging.
Supply support for AD9204BCPZ-20 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD9204 product line delivers low-power, dual-channel ADCs optimized for portable instrumentation, medical imaging, and communications infrastructure where 10-bit resolution, 20–80 MSPS flexibility, and 1.8 V operation are essential.
FAQ
What is the maximum analog input frequency supported by the AD9204BCPZ-20?
The AD9204BCPZ-20 features a 700 MHz analog input bandwidth, enabling faithful digitization of signals up to approximately 350 MHz before aliasing becomes significant. At 20 MSPS, its Nyquist frequency is 10 MHz, so practical full-scale input frequencies are typically limited to ≤9.7 MHz for optimal SNR and SFDR performance as specified in the datasheet.
Does the AD9204BCPZ-20 require an external voltage reference?
No, the AD9204BCPZ-20 includes an on-chip 1.0 V voltage reference with ±12 mV tolerance over temperature. It can operate in internal reference mode (VREF pin left open or tied to SENSE) or accept an external reference (0.5 V to 1.25 V) for improved accuracy. The internal reference eliminates BOM cost and layout complexity in many applications.
How does the AD9204BCPZ-20 handle clock jitter, and what is its aperture uncertainty?
The AD9204BCPZ-20 specifies aperture uncertainty (jitter) of 0.1 ps rms, contributing minimally to SNR degradation. Its patented sample-and-hold circuit maintains performance up to 200 MHz input frequency, and the optional duty cycle stabilizer compensates for clock duty cycle variations without degrading AC performance-key for systems using non-50% duty cycle clocks.
Can the AD9204BCPZ-20 output data in multiple formats, and how is it configured?
Yes, the AD9204BCPZ-20 supports offset binary, gray code, and twos complement output formats. Format selection is controlled via the SCLK/DFS pin in hardware mode (DFS high = twos complement; DFS low = offset binary) or through SPI register writes for full flexibility during system initialization or runtime reconfiguration.
What power-saving modes are available on the AD9204BCPZ-20, and how quickly can it resume operation?
The AD9204BCPZ-20 offers two low-power states: standby mode (37 mW total) and full power-down mode (2.2 mW). Wake-up time from power-down is 350 µs, dependent on decoupling capacitor values. This enables rapid cycling in burst-mode acquisition systems such as portable diagnostic tools or radar pulse sampling.
AD9204BCPZ-20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 20M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.8V
- Voltage - Supply, Digital:
- 1.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-LFCSP-VQ (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9204BCPZ-20 FAQ
1.How can I place an order for AD9204BCPZ-20 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9204BCPZ-20 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD9204BCPZ-20 reliable?
The price and inventory of AD9204BCPZ-20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9204BCPZ-20 is usually 5 days.
3.What payment methods are accepted for AD9204BCPZ-20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9204BCPZ-20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9204BCPZ-20?
AD9204BCPZ-20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9204BCPZ-20 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD9204BCPZ-20?
For technical support, including AD9204BCPZ-20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9204BCPZ-20 requirements.
6.How does Aetrix verify that AD9204BCPZ-20 is sourced from the original manufacturer or authorized distributors?
All AD9204BCPZ-20 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD9204BCPZ-20 meets industry standards.
7.What is the process for return or replacement of AD9204BCPZ-20?
All AD9204BCPZ-20 units undergo pre-shipment inspection (PSI). If there is an issue with AD9204BCPZ-20, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD9204BCPZ-20 part is unused and in its original packaging.
Return procedure for AD9204BCPZ-20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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